Value Collection BDNA--30604-26 Hex Cap Screw 5/8-11

Product Description

The VALUE COLLECTION BDNA--30604-26 is a partially threaded hex head cap screw designed for industrial and trade fastening applications. Manufactured from Grade 316 stainless steel, this fastener delivers strong corrosion resistance in wet, chemical, and marine environments. It features a 5/8-11 UNC thread and measures 4.5 inches under the head, making it suitable for structural bolted connections requiring extended grip length. The uncoated finish preserves the natural corrosion properties of 316 alloy. Plumbers, pipefitters, HVAC technicians, and general contractors use this fastener where standard carbon steel hardware would corrode prematurely.

This cap screw is suited for use in residential and commercial mechanical installations, outdoor equipment mounting, marine-adjacent environments, and process piping support structures. The partially threaded shank provides a smooth bearing surface where the fastener passes through a clearance hole, improving load distribution in bolted assemblies. Typical applications include pipe flange connections, equipment bases, and structural steel attachments where corrosion resistance is a requirement.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and chemical environments
• 5/8-11 UNC thread compatible with standard inch-series nuts and tapped holes
• Partially threaded shank provides a smooth bearing surface for improved load distribution
• 4.5-inch length under head accommodates thick material stacks and structural members
• Uncoated finish retains natural 316 alloy properties without added coating thickness

Compatibility

Designed as a standard 5/8-11 UNC inch-series hex head cap screw compatible with 5/8-11 nuts, washers, and tapped holes following ASME B18.2.1 dimensional standards for heavy and structural fastening applications.

Installation Notes

Installation should be performed by a qualified tradesperson using the appropriate SAE or metric hex wrenches or sockets sized for a 5/8-inch hex cap screw. Always use compatible Grade 316 stainless steel nuts and washers to prevent galvanic corrosion between dissimilar metals. Verify thread engagement depth and torque requirements against the application engineering specification or applicable code before final tightening. Do not use power impact tools at full torque without a calibrated torque-limiting attachment to avoid galling of stainless steel threads.